Induction stoves are pretty good for dumping watts into water. However, it's very hard to get a good mid-range temperature. Gas makes it really straightforward to get something cooking at exactly the heat you want.
I think I have tried 5 different models in the last few years, from the very cheap, to the relatively pricey, and all were relatively lacking when it came to fine control.
I don't think there's any real reason why they shouldn't have fine temperature control - presumably the temperature is controlled by the switching speed of the mosfets in the coils?
I imagine this will change, though. I would have thought induction hobs are cheaper to produce, since it's just a copper coil and a bunch of power mosfets.
Induction stoves are pretty good for dumping watts into water. However, it's very hard to get a good mid-range temperature. Gas makes it really straightforward to get something cooking at exactly the heat you want.